FUNCTION FORM_BEGIN ( box : Dialog_Ptr; index : Tree_Index ) : Tree_Index;
   EXTERNAL;
PROCEDURE FORM_END;
   EXTERNAL;
PROCEDURE CHANGE_FORMAT ( caller : FormatCall );
   EXTERNAL;
FUNCTION GOTO_CELL : BOOLEAN;
   EXTERNAL;
PROCEDURE REPLICATE_CELL;
   EXTERNAL;
PROCEDURE SORT;
   EXTERNAL;
PROCEDURE VIEW_FORMAT;
   EXTERNAL;
PROCEDURE HELP ( which : INTEGER );
   EXTERNAL;
PROCEDURE PRINT_SPREADSHEET ( print                       : BOOLEAN; 
                              msg                         : STR30;
                              VAR s_row,s_col,f_row,f_col : INTEGER );
   EXTERNAL;
PROCEDURE DATA_FILL;
   EXTERNAL;
PROCEDURE ERROR_MESSAGE ( VAR str     : LorFstr; 
                          error       : StatusType;
                          str_pos,len : INTEGER     );
   EXTERNAL;
FUNCTION ASK_FOR_RANGE ( VAR s_r,s_c,e_r,e_c : INTEGER;
                         title               : STR30    ) : BOOLEAN;
   EXTERNAL;                      
PROCEDURE STATS;
   EXTERNAL;
FUNCTION DO_FREEZE : BOOLEAN;
   EXTERNAL;